feat: improve strategy studio and fix trader deletion bug

- Add strategy export/import functionality to Strategy Studio
- Fix trader deletion not removing from memory (competition page ghost data)
- Simplify TraderConfigViewModal: remove unused fields, show strategy name
- Improve quant data formatting: OI/Netflow multi-timeframe display
- Add configurable OI/Netflow toggles in indicator settings
- Clean up unused frontend components and dead code

web/src/types/index.ts

@@ -1,93 +0,0 @@
-// 系统状态
-export interface SystemStatus {
-  is_running: boolean
-  start_time: string
-  runtime_minutes: number
-  call_count: number
-  initial_balance: number
-  scan_interval: string
-  stop_until: string
-  last_reset_time: string
-  ai_provider: string
-}
-
-// 账户信息
-export interface AccountInfo {
-  total_equity: number
-  available_balance: number
-  total_pnl: number
-  total_pnl_pct: number
-  total_unrealized_pnl: number
-  margin_used: number
-  margin_used_pct: number
-  position_count: number
-  initial_balance: number
-  daily_pnl: number
-}
-
-// 持仓信息
-export interface Position {
-  symbol: string
-  side: string
-  entry_price: number
-  mark_price: number
-  quantity: number
-  leverage: number
-  unrealized_pnl: number
-  unrealized_pnl_pct: number
-  liquidation_price: number
-  margin_used: number
-}
-
-// 决策动作
-export interface DecisionAction {
-  action: string
-  symbol: string
-  quantity: number
-  leverage: number
-  price: number
-  order_id: number
-  timestamp: string
-  success: boolean
-  error: string
-}
-
-// 决策记录
-export interface DecisionRecord {
-  timestamp: string
-  cycle_number: number
-  input_prompt: string
-  cot_trace: string
-  decision_json: string
-  account_state: {
-    total_balance: number
-    available_balance: number
-    total_unrealized_profit: number
-    position_count: number
-    margin_used_pct: number
-  }
-  positions: Array<{
-    symbol: string
-    side: string
-    position_amt: number
-    entry_price: number
-    mark_price: number
-    unrealized_profit: number
-    leverage: number
-    liquidation_price: number
-  }>
-  candidate_coins: string[]
-  decisions: DecisionAction[]
-  execution_log: string[]
-  success: boolean
-  error_message: string
-}
-
-// 统计信息
-export interface Statistics {
-  total_cycles: number
-  successful_cycles: number
-  failed_cycles: number
-  total_open_positions: number
-  total_close_positions: number
-}